Earth is not our real life. It's akin to a simulation.
The name of our real planet is Cerri. It's not an afterlife, because we were born there before we came to earth. However, not everyone even goes to earth; there's not nearly enough space for all of us. Why Earth even exists and how who gets sent here is determined, I have no clue. I'm not sure anybody knows.
Cerri isn't a place with no problems. There's no such thing as a place without difficulties. It just doesn't have pointless problems that Earth has. People don't die at home. If they sustain too much injury, they go into a coma that they inevitably wake up from. How long the coma lasts depends on the kind of injury they received.
Age and gender are wrong as Earth understands them. Age has nothing to do with how many years you've been alive. I'm not talking about the adults that say "I'm a kid at heart" because they collect plushies and watch Disney movies. I mean that someone's mind and body can literally stop developing at a certain time. I stopped developing around 12-14. Also, males and females don't have physical differences at home. Each individual is given a body that matches their soul. Gender is just an aura related to vague mannerisms that everyone picks up on. We don't have genitals at home; there's a small hole where the part between your legs is on earth. There are trans* people on earth because earth gave them the wrong type of body and earth associates gender with body type.
We're a lot faster, stronger, and have better senses all around at home. It's not unusual for an athlete to be able to jump over several-story buildings. We can also eat a lot more at home, and there's no such thing as gaining or losing weight because your body's condition is permanent; it's one that matches your soul.
It's not always peace, but there aren't sadistic psychopaths who hurt people for pleasure. Every organization fights for a cause and legitimately wants to help people. Some of them are just misguided. Think Archie and Maxie from RSE/ORAS.
There are confirmed aliens. Cerri isn't the only planet. The Empyrean Council is one of the oldest groups of aliens. On the subject of age, people don't have wrinkles. Those who continue to mature past 30-40 will still have a body that looks around the range. There are people and other species members who are hundreds of years old.
There are guardians who watch over each country. Some countries on earth like Scotland and Egypt also exist on Cerri, and they have countries not on earth like one called Serenity. Each country has its own language.
It's impossible to lose a limb or suffer any other disgusting earth condition or disfigurement.
Those are the basics.